Video random-access memory: Difference between revisions

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Many modern GPUs rely on VRAM. In contrast, a GPU that does ''not'' use VRAM, and relies instead on system RAM, is said to have a [[unified memory architecture]], or [[shared graphics memory]].
 
System RAM and VRAM have been segregated due to the bandwidth requirements of GPUs,<ref>{{Cite web|title=What is VRAM: The Memory Power Behind Real-time Ray-Tracing|url=https://digitaladvisor.com/graphics-cards/what-is-vram/}}</ref><ref>{{Cite web|url=https://itigic.com/relationship-between-ram-and-vram-bandwidth-and-their-latency/|title=Relationship Between RAM and VRAM Bandwidth and Their Latency|date=17 May 2021 }}</ref> and to achieve lower latency, since VRAM is physically closer to the GPU die.<ref>{{Cite web|url=https://www.makeuseof.com/ram-vs-vram-differences/|title=RAM vs. VRAM: What's the Difference?|website=makeuseof.com|date=16 July 2021 }}</ref>
 
Modern VRAM is typically found in a [[Ball grid array|BGA package]]<ref>{{Cite web|title=Encapsulated in CPUs, GPUs, RAM and Flash: Types and Uses|date=23 March 2021 |url=https://itigic.com/encapsulated-in-cpus-gpus-ram-and-flash-types-and-uses/}}</ref> soldered onto a graphics card.<ref>{{Cite web|url=https://graphicscardhub.com/graphics-card-component-connectors/|title=Graphics Card Components & Connectors Explained|date=29 March 2017 }}</ref> The VRAM is cooled along with the GPU by the GPU heatsink.<ref>{{Cite web|url=https://graphicscardhub.com/graphics-card-cooling-solutions/|title=Different Types of Graphics Card Cooling Solutions for GPU, VRAM & VRM|date=17 January 2017 }}</ref>
 
==Technologies==
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* [[SGRAM]]
* [[GDDR SDRAM]]
* [[High Bandwidth Memory]] (HBM)<ref>{{Cite web|url=https://www.techdim.com/vram-vs-ram/|title=VRAM vs RAM {{!}} Differences & Applications|website=TechDim|date=3 April 2024 }}</ref>
 
==See also==